Diffractive Optics For Broadband Infrared Imagers: Design Examples

Teresa A. Fritz; J. Allen Cox

doi:10.1117/12.951483

6 May 1989 Diffractive Optics For Broadband Infrared Imagers: Design Examples

Teresa A. Fritz, J. Allen Cox

Proceedings Volume 1052, Holographic Optics: Optically and Computer Generated; (1989) https://doi.org/10.1117/12.951483
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Two optical designs for infrared imagers, a fast (F/1) staring system and a slower (F/2.4) scanning system, are discussed to demonstrate the advantages and limitations of using hybrid diffractive/refractive elements as replacements for conventional elements. Each case is compared to a conventional design of all spherical elements satisfying a specific set of hypothetical requirements for resolution, field-of-view, and spectral bandwidth (8-12 μm). We find that as much as a 33 percent reduction in the number of elements can be achieved in the slower system using hybrid elements. For the fast system, spherochromatism greatly limits the performance of the hybrid design. A table is presented showing the trades among F-number, field-of-view, bandwidth, and materials needed to maintain constant resolution in the fast system.

Citation Download Citation

Teresa A. Fritz and J. Allen Cox "Diffractive Optics For Broadband Infrared Imagers: Design Examples", Proc. SPIE 1052, Holographic Optics: Optically and Computer Generated, (6 May 1989); https://doi.org/10.1117/12.951483

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available